What standard covers arc flash protection?

• A. NFPA 70E
• B. IEEE 1584
• C. ANSI C2
• D. OSHA 1910

Answer: (C)

Arc flash protection is defined by standards that set direct requirements for electrical safety in the workplace. The primary standard for this is NFPA 70E, which specifies how to identify arc flash hazards, how to protect workers with appropriate PPE, and the safe work practices and electrical safety boundaries needed to prevent or reduce arc flash injuries. IEEE 1584 complements this by providing the calculation method to estimate arc flash incident energy, which helps determine the level of PPE and the necessary clearances, and NFPA 70E often references this method. ANSI C2 (the National Electrical Safety Code) focuses on the safe installation and operation of electrical supply systems, mainly in utility settings, and does not provide the specific arc flash protection requirements used in most industrial or workplace environments. OSHA 1910 offers regulatory enforcement around electrical safety generally and may reference NFPA 70E, but the standard that directly covers arc flash protection is NFPA 70E.